That doesn't prove anything other than hate speech and lying about a candidate were clamped down on in the full context of the law, and quite correctly so. That doesn't constitute criticising Obama, it is lying about him, telling falsehoods.
Try again, and try and find something with a little accuracy and not some right wing nuts blog, something with some authenticity or credibility at least, let alone something peer reviewed.
Keltic, im still waiting for you to try again so I bow down.